This was a design decision and will remain this way through release.
Hard to figure - really hard to figure 
Many...many people said it was annoying to test with random winds in the GNCD and they wanted to be able to turn the wind off.
So, we figured that better to be able to test in consistent, low-wind conditions than totally random wind. But, as I said, we will be giving you a dial to control wind in the GNCD not too far after launch, me thinks.